Automatic bucket dumping hoist



April 15, 1958 c. c. FIGGE ,8 0,720

AUTOMATIC BUCKET DUMPING HGIST Filed May 9, 1956 2 Sheets-Sheet 1CARROLL G F/GGE ZQMwaM ATT'Y April 15, 1958 c. c. FIGGE AUTOMATIC BUCKETDUMPING HOIST 2 Sheets-Sheet 2 Filed May 9, 1956 CARROLL 6. F/GGE ATT'YUnited States Patent AUTOMATIC BUCKET DUlVIPlNG HOIST Carroll C. Figge,Batavia, Ill.

Application May 9, 1956, Serial No. 583,732

Claims. (Cl. 214-623) This invention relates in general to a hoist andis more particularly described as an automatic dumping hoist for use inbuilding operations and by roofers although it may have a more generaluse wherever applicable.

In an ordinary hoist for temporary uses for building, roofing and thelike, it is current practice to equip a projecting beam with a pulleyand to raise materials in a bucket or sling or at the end of a rope tothe desired height. Workmen at the upper level reach out and pull theraised material inwardly through a window or other opening or at the topof a roof. This practice is not only dangerous for the workmen at theupper level, but it is also hazardous for the workmen at the lower levelwho may be filling the buckets or other containers and operating thehoisting rope.

The present invention overcomes the above objections by providing atilting support at the upper level which allows a bucket or other loadto be raised past the support and then lowered down upon the supporteither to automatically dump the contents or rest it upon a platformwhich is movable inwardly by a workman at the upper level withoutleaning over to grasp the raised material, and thus to conduct thematerial safely to the in terior of the opening or building.

Animportant object of the invention is to provide an automatic tiltingplatform in connection with a hoist which allows material to be raisedabove the hoist and then to be lowered thereon either in tilting orlevel positron.

A further object of the invention is to provide means above the tiltingplatform for engaging a bucket or other discharging container forpositively tilting it and automatically discharging the contents of thebucket upon the platform.

Still a further object of the invention is to provide a platform forreceiving material raised at the outside of a building and moving theplatform inwardly where it is more easily accessible.

Still a further object of the invention is to provide an automaticdumping hoist in connection with an inclined platform or chute so thatmaterial may be raised and dis charged on the platform and into areceptacle such as a wheelbarrow at the inner end of the platformwithout the attention of a workman at the upper level.

Still a further object of the invention is to provide a movably mountedplat-form for a hoist at the outer end of a platform which may be movedinwardly and inclined at the inner end to discharge material from theplatform to a lower level.

A further object of the invention is to provide a movable platform for ahoist which may be positioned at different inclinations and movedendwise to automatically receive a load at one end and moved endwise inthe other direction to discharge material from the platform.

A further object of the invention is to provide a hoist of this kindhaving supporting beams and connecting parts which may be foldedcompactly together for transporting 2,830,720 Patented Apr. 15, 1958"ice the hoist from one place to another and for raising and lowering itto the location in a building where it is used.

Other objects of the invention will appear in the specification and willbe more apparent from the accompany ing drawings in which,

Fig. l is a perspective view of an automatic hoist in accordance withthis invention as located upon a roof.

Fig. 2 is an enlarged perspective view of the material receivingplatform.

Fig. 3 is a somewhat diagrammatic and fragmentary view illustrating theoperation of a filled receptacle with the inclined platform.

Fig. 4 is a somewhat diagrammatic view showing the tilting action of areceptacle following the stage shown in Fig. 3.

Fig. 5 is a somewhat diagrammatic view showing the.

filled receptacle in connection with a horizontal receiving platform inits upward movement.

Fig. 6 is a somewhat diagrammatic figure illustrating the operation of afilled receptacle in its downward move ment following the stage shown inFig. 5; and

Fig. 7 is a fragmentary side elevation showing the loading platformdischarging a receptacle from its inclined inner end.

In this invention, there is a movable platform which may be set atdiiferent angular positions and has hinged sections movable either intothe path of hoisted material to receive it, or at an angle at the innerend of the plat form to assist in discharging material therefrom. In anyadjusted position of the platform, it may operate to receive hoistedmaterial automatically and discharge it from the platform automatically,or the operation may be assisted by a workman who is not required tolean outwardly from the building or the supporting means for the hoistto direct the hoisted material inwardly, and thus he is not subjected tothe danger of falling or being burned by hot material, and the materialis handled and discharged more quickly and without danger to the workmanor loss by spillage of the material itself.

Referring now more particularly to the drawings, anautomatic hoist inaccordance with this invention is shown on a roof although the sameconstruction might be used at any floor level, projecting through awindow,

a door or any other suitable opening.

This hoist comprises an inclined supporting beam 10 which extends at itsouter end beyond the side of a building or over a parapet 12 of a roof14. At the outer overhanging end of the beam is a pulley 16 securedthereto having a cable 18 extending around the pulley for raising anopen receptacle 20 by means of a pivoting ball 22.

To support the beam 10, braces 24 are inclined angularly outward at bothsides of the beam from a point near the outer end thereof depending uponthe amount of overhang desired. At the lower ends of the brace, they areconnected to a cross piece 26. Extending rearwardly from the centralportion of the cross piece is a base beam 28 to which the lower inclinedend of the supporting beam 10 is secured by a fastening bolt 30. Thebeams and braces are connected together by fastening bolts and endplates in a well known manner to vary the inclination of the supportingbeam 10, and the amount of overhang of the forward end of the beam 10.At the rear of the base beam 28 is a stirrup 32 through which across-piece 34 may project at both ends upon which weights may 'beplaced such as barrels or rolls 36 of material to weight down this endof the hoist, thereby counterbalancing any weight which may be carriedin the load receptacle 20, or by the cable 18.

The beams, braces, and cross pieces are preferably bolted together sothat they may be easily disengaged and assembled and when disengaged,the parts will fold L compactly together so that they may be easilytransported from one job to another, and moved from one floor or to theroof of a building with the least work and in the quickest time.

Mounted in the hoist frame preferably by means of a shaft 38 or another.siutable support which is attached at its ends by clamps 39 to thebraces 34 is a platform 40 which may be adjusted in its inclination, butwhen horizontal is at a convenient height for engagement by workmenstanding upon the roof or floor upon which the hoist is mounted. Thisplatform preferably comprises a pair of connected channels 42 whichextend transvesrely of the shaft 38 and pivoted thereon by bearings 44and are of sufiicient length to project into the path of the cable 18and to extend at the same time over the parapet 12 or into the spacewithin the hoist. To secure the platform at any desired inclination,flexible connections such as chains 46 and 43 are connected respectivelyat the front and rear portions of the platform and are separatelyengaged with hooks 50 secured to the cross piece 26, the

various links of the chains being engageable with the hooks to vary theinclination of the channels.

At the outer end of the platform, the upper web of each channel isomitted, leaving a clear space between these ends of the channelsthrough which the cable 18 and the bucket or receptacle 2t) may passfreely in moving upward and downward in the hoist.

Slidable in the channels 42 is a supporting base 52 of the platformwhich has an outer end 54 connected by a hinge 56, thereby adapting itto move freely upward 5 with respect to the ends of the channels wherethe upper web is omitted but limited in its downward movement to theplane of the channels 42 by its engagement with the lower webs of thechannels. The other end of the base has an inner end 53 connected by ahinge 66 and movable in either direction from the channels when thehinge is free from or outside of the inner ends thereof. This base 52 istherefore freely movable in either direction and may be locked in one ormore positions in any suitable manner such as by pins 62 which extendthrough suitable openings 64 in the webs of the channels 42 and throughany one of two or more sets of openings 66 in the base 52. One set ofopenings 66 may lock the base in a position to swing the outer end 54upwardly and another set of openings 66 may lock the base in a positionto hold the outer end in engagement with the webs of the channels 42 butto allow the inner end 58 to swing freely at the inner ends of thechannels.

Mounted in the hoist frame between the platform 40 and the pulley 16 isa bar 63 having an arm 70 connected at one end thereof by a pivot 72which allows the arm to swing downwardly at the end of the bar but whenthe arm is raised in alignment with the bar, it is limited in movementthereby.

This bar is adjustable in the frame by means of mounting strips 74 ofthin metal or the like which may be attached by a bolt 76 which connectsthe side braces 24 to the beam 10.

At the lower ends of the strips 74 is a pivoting bolt 78 which extendsthrough one of several openings 80 in the central portion of the bar 68so that the bar may be adjustable lengthwise to extend the pivoted arm70 more or less as desired. In order to vary the inclination of the bar68, a rigid member 82 is connected to the inner end of the bar oppositethe arm 70 by means of a bolt 84 extending through the bar 68 and anyone of a plurality of openings 86 in the member 82. The upper end ofthis member is connected by a bolt 88 with the supporting beam 10.

With this construction, the angular position and the amount ofprojection of the tilting arm 70 may be varied as desired.

In operation, this hoist is set up upon the roof or floor desired bymounting the beam 19 in an overhanging position at the edge of thebuilding and adjusting the platform 40 and the tilting arm 70 in theproper positions.

The bucket or receptacle 20 is filled with material which is raised bythe cable 18 either from an upper level or from the ground which raisesthe receptacle between the enter projecting ends of the channels 42engaging the outer hinged end 54 of the platform base which raises thisend as shown in Figs. 3 and 5 and allows the receptacle to pass beyondit.

If it is desired to seat the receptacle upon the platform 40, it ismerely lowered until it rests upon the top of the outer end 54 as shownin Fig. 6 and the platform base may be pulled inwardly by a workman asdesired.

If the receptacle is to be automatically dumped, the platform 40 iseasily set at a different inclination as shown in Figs. 3 and 4, thereceptacle need not necessarily engage and raise the pivoted outer end54 of the platform base, but the tilting arm 70 is in the path of theinnermost side of the receptacle so that as it is raised past theplatform, the downwardly turned arm 70 will engage in the near side ofthe receptacle and as it is raised, the arm engages in the top of thereceptacle gradually tilting it and the arm is moved upon itspositioning bar 68 until it is in alignment with the bar, whereupon thereceptacle will be up-ended and the contents discharge therefrom uponthe platform 40 and particularly upon the base 52 of the platform whichis slidable within the side channels 42. If the receiving platform issufficiently inclined as indicated in Fig. 4, the material from thereceptacle 20 will slide or flow down the platform and may be receivedby a wheelbarrow 90 or any other suitable receptacle placed at thebottom of the inclined platform.

If it is desirable to transfer material in the receptacle 20 at adistance from the hoist, it may be deposited upon the platform as inFig. 7 disengaged from the cable 18 and moved inwardly upon the slidingbase 52. The sliding base may be moved inwardly and the inner end of thebase inclined downwardly so that the receptacle may be moved downwardlyupon the inclined inner end 58 to the floor or roof level.

Thus the receptacle may be filled at the bottom, raised and deposited ordumped at the upper level without special attention at the time of aworkman at the upper level of the hoist. Thereafter, when he. is ready,the workman at the upper level may appear at the hoist and empty thecontainer or remove a filled wheelbarrow and return the receptacle foranother load. After work with the hoist is finished at any level, theparts thereof may be quickly detached and assembled in compact relationfor moving them to another level or a different location where they maybe again set up with the same relation of the parts or the parts may bequickly adjusted for different hoisting conditions or to accommodatedifferent hoisting materials.

While a preferred construction has been described in some detail, itshould be regarded as an illustration or example rather than as alimitation or restriction of the invention, since various changes in theconstruction, combination, and arrangement of the parts may be madewithout departing from the spirit and scope of the invention.

I claim:

1. In a hoist for buildings and the like, a beam to project at one endbeyond the side of a building, means for supporting the projecting endof the beam in overhanging relation with respect to a floor or rooflevel of the building, a pulley carried by the overhanging portion ofthe beam outside of the building, a load receptacle and a cableconnected thereto and extending over the pulley for raising materialwith respect to the beam, and a platform supported by said means belowthe pulley and above the floor level, the platform having an outerupwardly tiltable portion in the path of the receptacle, engaged andraised by the receptacle in its upward movement and movable downwardlyto engage the bottom of andsup port the receptacle when it is raisedabove the'tiltable section and lowered thereon.

2. In a hoist in accordance with claim 1, the platform having means forslidably supporting it at different angles to move into and out of thepath of the load receptacle.

3. In a hoist in accordance with claim 2, the means to slidably supportthe platform comprising side channels, the outer top webs of which areomitted at the outer ends to free the tiltable portion for upwardmovement and the lower Webs to engage the tiltable portion in thedownward movement thereof.

4. In a hoist according to claim 1, side channels for slidablysupporting the platform and adjustable means in connection with themeans for supporting the beanr for moving the platform and thesupporting channels to different inclinations with respect to the flooror roof level.

5. In a hoist in accordance with claim 4, the adjusting means comprisingchains connected at the ends of the channels and to the means forsupporting the beam for varying the inclination of the channels and theplatform supported thereby.

6. In a hoist in accordance with claim 2, the platform having an innertiltable portion which is inclinable relative to the remainder of theplatform when the platform is moved inwardly from its outer receptacleengaging position.

7. In a hoist for buildings and the like in accordance with claim 1,means forming a projection extending from said supporting means in thepath of the receptacle below the pulley including an extending arm toengage the top of the receptacle and to tilt the receptacle fordischarging material therefrom upon the platform as the receptacle ismoved upwardly beyond such engagement, and the said platform in the pathof the receptacle which is engaged by the receptacle being movablethereby out of said path and returning thereto as the receptacle engagessaid projection.

8. In a hoist in accordance with claim 7, the load receptacle being openat the top, and means for supporting the arm to swing downwardly toengage in the open top of the receptacle, and stop means for limitingthe hinging movement of the arm to tilt the top of the receptacle as itis moved upwardly in engagement with the arm.

9. In a hoist in accordance with claim 8, the means for supporting thehinged arm having an adjustable connection by which the position of thearm may be varied for upper and lower engagement with the receptacle.

10. In a hoist for buildings and the like, in accordance with claim 1,including a projection in the path of the receptacle between theplatform, and the pulley having a hinged arm extending downwardly toengage the top of the receptacle and rotatable upwardly to a limitedextent by the upward movement of the receptacle to tilt the receptacleand discharge the contents thereof upon the platform as the receptacleis moved upwardly in engagement with the arm.

11. In a hoist in accordance with claim 1, a pair of side bracesconnected to the beam at a distance from its projecting end andextending angularly downward therefrom at the sides, a connecting crosspiece for engaging the bottoms of the braces, a rearwardly extendingbase beam connected at one end intermediate the ends of the cross pieceand extending beyond the other end of the supporting beam, a stirrup atthe rear end of the base beam and a cross piece projecting at the sidesthereof for receiving counter-balancing weights thereon to prevent thehoist from tilting upwardly at its rear end due to the Weight of theload receptacle.

12. A hoist in accordance with claim 11 comprising a support connectedto the side braces above the lower ends thereof in which said platformis pivotally supported, chains connected at opposite ends of theplatform and adjustably connected to the cross piece at the bottom ofthe braces for adjusting the inclination of the platform and thetiltable portion in the hoist.

13. In a hoist in accordance with claim 11, the beams, braces and crosspieces being detachably bolted together so that the hoist may be easilyerected and taken apart for storage and transportation to and from thetop of a building and any intermediate floor thereof.

14. In a hoist in accordance with claim 13, a projection in the path ofthe receptacle below the pulley including an extending arm to engage thetop of the receptacle, a mounting bar in which the arm is pivoted toswing in one direction and engages the bar for limiting its movement inthe other direction, the bar having supporting strips adjustablyattached to the projecting beam for supporting the bar intermediate itsends, and a positioning member adjustably connected at its lower end tothe end of the bar opposite the pivoted arm and connected at its upperend to the projecting beam at a distance from the attachment of thestrips to the beam.

15. In a hoist in accordance with claim 7, the projection being hingedat one end of a bar to swing at an angle therefrom, and the swingingmovement limited by engagement of the arm in alignment with the bar, andmeans connected to the said beam for adjustably mounting the barsupporting the arm at various inclinations and for varying the locationof the said arm in various positions with respect to the beam.

References Cited in the file of this patent UNITED STATES PATENTS607,966 Strickler July 26, 1898 980,734 Ankrom Jan. 3, 1911 1,562,781Moser Nov. 24, 1925 1,567,385 Reed Dec. 29, 1925

